Process method for toughening ultra-thin glass
A process method, ultra-thin glass technology, applied in glass tempering, glass production, glass manufacturing equipment, etc., can solve the problems of insufficient glass hardness and unsatisfactory forming effect, and achieve the effect of increasing production efficiency
Inactive Publication Date: 2013-08-21
SUZHOU HAIYIN OPTOELECTRONICS TECH
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Problems solved by technology
However, the current manufacturing process, due to the different technical parameters adopted by each manufacturer, will have defects such as insufficient glass hardness and unsatisfactory molding effect.
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[0016] Such as figure 1 An ultra-thin glass strengthening process method is shown, the steps of the process method are:
[0017] a. Cutting, first cut the glass products into the required size and put them in the product basket;
[0018] b. Preheating, place the product basket in the preheating furnace, slowly raise the temperature to 250-300°C, preferably 300°C, and the holding time is 1-2 hours, preferably 1.5 hours;
[0019] c, strengthening, the preheated product is placed in potassium nitrate solution with a purity of more than 99.9%, and a catalyst containing Li ions is added to the potassium nitrate solution, and 30-40g is added in every 100kg of potassium nitrate solution; Slowly rise to 400-450°C, preferably 420°C, and the holding time is 6-9 hours, preferably 8 hours;
[0020] d. Cool down, move the strengthened product into the cooling chamber, and slowly lower the temperature to normal temperature;
[0021] e. Cleaning, cleaning the cooled glass products.
[00...
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The invention relates to a process method for toughening ultra-thin glass. The process method comprises the following steps of: (a) cutting: firstly cutting glass products according to required sizes, and intensively putting the cut glass products into a product basket; (b) preheating: putting the product basket into a preheating furnace, and slowly rising the temperature to 250-300 DEG C, wherein the temperature preservation time is 1-2 hours; (c) strengthening: putting the preheated products into potassium nitrate solution, and slowly rising the temperature to 400-450 DEG C, wherein the temperature preservation time is 6-9 hours; (d) cooling: transferring the strengthened products into a cooling chamber, and slowly cooling to the normal temperature; and (e) cleaning: cleaning the cooled glass products. After repeated experiments is carried out by utilizing the process method, according to technical parameters utilized in the process method, the glass is relative high in rigidity, is not easy to damage and is good in forming effect, and the production efficiency is improved.
Description
technical field [0001] The invention relates to a process method in the field of glass manufacturing, in particular to an ultra-thin glass strengthening process method. Background technique [0002] Tempered glass is also called tempered glass. It uses physical or chemical methods to form a compressive stress layer on the glass surface. The glass itself has high compressive strength and will not cause damage. When the glass is subjected to external force, this pressure layer can offset part of the tensile stress to avoid glass breakage. Although the tempered glass is in a state of relatively large tensile stress, there are no defects inside the glass and will not cause damage , so as to achieve the purpose of improving the glass strength. As we all know, microcracks on the surface of materials are the main cause of material rupture, because microcracks will gradually expand under the action of tension, and finally crack along the cracks. After glass is tempered, due to the...
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IPC IPC(8): C03B27/03
CPCY02P40/57
Inventor 程宏昌刘军肖国纯解涛
Owner SUZHOU HAIYIN OPTOELECTRONICS TECH